EP4110636B1 - A circuit carrier for cardan shafts - Google Patents

A circuit carrier for cardan shafts Download PDF

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Publication number
EP4110636B1
EP4110636B1 EP21863046.5A EP21863046A EP4110636B1 EP 4110636 B1 EP4110636 B1 EP 4110636B1 EP 21863046 A EP21863046 A EP 21863046A EP 4110636 B1 EP4110636 B1 EP 4110636B1
Authority
EP
European Patent Office
Prior art keywords
circuit
cardan shaft
carrier
circuit carrier
yoke
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP21863046.5A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP4110636C0 (en
EP4110636A1 (en
Inventor
Sedat TARAKÇI
Oguzhan Aldemir
Efe Isik
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Tirsan Kardan Sanayi ve Ticaret AS
Original Assignee
Tirsan Kardan Sanayi ve Ticaret AS
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Tirsan Kardan Sanayi ve Ticaret AS filed Critical Tirsan Kardan Sanayi ve Ticaret AS
Publication of EP4110636A1 publication Critical patent/EP4110636A1/en
Application granted granted Critical
Publication of EP4110636B1 publication Critical patent/EP4110636B1/en
Publication of EP4110636C0 publication Critical patent/EP4110636C0/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D3/00—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive
    • F16D3/16—Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts
    • F16D3/26—Hooke's joints or other joints with an equivalent intermediate member to which each coupling part is pivotally or slidably connected
    • F16D3/38—Hooke's joints or other joints with an equivalent intermediate member to which each coupling part is pivotally or slidably connected with a single intermediate member with trunnions or bearings arranged on two axes perpendicular to one another
    • F16D3/382—Hooke's joints or other joints with an equivalent intermediate member to which each coupling part is pivotally or slidably connected with a single intermediate member with trunnions or bearings arranged on two axes perpendicular to one another constructional details of other than the intermediate member
    • F16D3/387—Fork construction; Mounting of fork on shaft; Adapting shaft for mounting of fork
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K17/00—Arrangement or mounting of transmissions in vehicles
    • B60K17/22—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or type of main drive shafting, e.g. cardan shaft
    • B60K17/24—Arrangements of mountings for shafting
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D2250/00—Manufacturing; Assembly
    • F16D2250/0007—Casting
    • F16D2250/0015—Casting around inserts
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D2250/00—Manufacturing; Assembly
    • F16D2250/0038—Surface treatment
    • F16D2250/0046—Coating
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D2300/00—Special features for couplings or clutches
    • F16D2300/18—Sensors; Details or arrangements thereof

Definitions

  • the present invention relates to a circuit carrier element that provides positioning and protection of an electronic circuit on the rotating elements of the cardan shafts, a cardan shaft with said circuit carrier element and the production method of said circuit carrier element.
  • Drive shafts are transmission elements used in moving a vehicle by receiving the rotational movement and power generated in the engine in motor vehicles from the engine or gearbox and transmitting the same to the differential of the vehicle.
  • a wireless power transmission system is disclosed in application numbered TR2017/08500 .
  • the coil windings positioned on the coil carriers, one on the cardan shaft and the other on the center bearing carrying the cardan shaft, provide power transfer to each other.
  • An electronic circuit arranged on the shaft is fed with the wireless power transfer provided here.
  • the circuit has contact with dust, liquid and similar damaging agents depending on the ambient conditions under operating conditions and therefore its operating life is very limited.
  • EP3714178 mainly relates a system to detect the rotational speed of the cardan shaft that is comprises at least a magnet and at least a hall sensor that generates pulse per revolution of the cardan shaft.
  • system needs electronic circuit that is located on the vehicle. Rotating elements could cause damage on the circuit board. So, in this system, a circuit carrier element that provides positioning and protection of an electronic circuit on the rotating elements of the cardan shafts is needed a circuit carrier element.
  • the document with the publication number WO2012146544A1 mainly relates to a study for applying a protective coating to the electronic components to be used in vehicle drive gears.
  • the basis of the study carried out here is that the circuit coating contains ceramic nanoparticles and oil/water repellent substances.
  • Such type of coating is far from meeting the mechanical needs especially for the cardan shafts, independent of the coating content.
  • the circuit is provided on a surface extending in the radial direction on a rotating element in cardan shafts.
  • the coatings provided here often do not stay in the assembly position at high speed and do not provide complete sealing. Besides, it has been seen that it is not possible to encapsulate the circuit completely with such coatings.
  • the present invention aims to eliminate the abovementioned problems and to make a development in the relevant technical field.
  • the main aim of the invention is to reveal the structure of a circuit carrier containing a coating for the protection and assembly of electronic parts on the rotating elements of the cardan shaft, and a cardan shaft with said circuit carrier and the production method for said circuit carrier.
  • the present invention relates to a circuit carrier for positioning a circuit on a rotating part of the cardan shaft, as defined in claim 1, so as to fulfill all aims mentioned above and will be obtained from the following detailed description.
  • the coating is provided in such a way that it does not come off said circuit carrier by means of the recess and the retaining holes and also the sealing of all surfaces has been increased by means of the elevation feet and the channel. Accordingly, the solution was achieved by the arrangements provided on the circuit assembly surface rather than the type and content of the coating.
  • said circuit assembly surface is provided in a circular shape.
  • said channel is provided in the form of a ring around the opening.
  • a preferred embodiment of the invention comprises two channels at the lower and upper part of said circuit element.
  • the tip of said elevation feet is provided with radius.
  • a preferred embodiment of the invention comprises a recess on the carrier body surface extending towards the rotating part.
  • a preferred embodiment of the invention comprises a coil winding surface to allow a coil winding to be wound onto the carrier body, which will provide wireless power transfer with another coil winding.
  • the present invention is a cardan shaft comprising the following; at least one midship yoke member and the cardan shaft unit element associated with said midship yoke piece; a center bearing to carry the cardan shaft and a circuit carrier in accordance with any of the embodiments that will emerge from claims 1-6 or the detailed description provided in connection with the neck portion of said intermediate yoke part or cardan shaft unit element.
  • the present invention is a cardan shaft comprising the following; at least one midship yoke member and the cardan shaft unit element associated with said midship yoke piece; a center bearing to carry the cardan shaft and a circuit carrier in accordance with any of the embodiments of the coil winding surface that will emerge from claim 6 or the detailed description provided in connection with the neck portion of said intermediate yoke part or cardan shaft unit element; two coil windings, one positioned on the center bearing and the other positioned on the circuit carrier, to provide wireless power transfer between each other.
  • the present invention relates to the production method of a circuit carrier for positioning a circuit on a rotating part of the cardan shaft so as to fulfill all aims mentioned above and will be obtained from the following detailed description. Accordingly, the present invention comprises the following process steps; providing a circuit carrier according to any of claims 1-6, applying the fluid coating on the circuit assembly surface such that the circuit element is completely encapsulated and fills the recess at least partially and completely the retention hole and then left to dry or to be dried.
  • the present invention relates to a circuit carrier (10) element that provides positioning and protection of an electronic circuit on the rotating elements of the cardan shafts, a cardan shaft with said circuit carrier (10) element and the production method of said circuit carrier (10) element.
  • the present invention relates to a circuit carrier (10) for positioning a circuit on a rotating part of the cardan shaft, characterized in that, it comprises the following;
  • the circuit element (D) may be a single part of a larger component, or it may be the component itself.
  • the circuit element (D) can be measurement elements or sensors that can take measurements especially on the relevant elements of the cardan shaft.
  • Said coating (K) is a structure that takes its protective final form by drying after it is applied in fluid form on the circuit carrier (10), in particular on the circuit element (D).
  • Said circuit carrier (10) is arranged to be connected on a carrier body (11) and especially on a rotating element of the cardan shaft.
  • the carrier body (11) is arranged to surround said rotating element in the form of a sheath.
  • the circuit carrier (10) comprises a circuit assembly surface (13) to which the circuit element (D) is connected and extending from the carrier body (11) in the radial direction and preferably arranged in a planar manner.
  • the rotating part of the cardan shaft is chosen as a midship yoke (20).
  • the circuit carrier (10) is arranged to be connected to the midship yoke (20), in particular to the neck portion of a midship yoke (20).
  • midship yoke (20) includes a pair of yokes (21) for inserting the trunnions of a cross and an yoke hole (211) on the yokes (21).
  • the midship yoke (20) and the cardan shaft unit element (30) are connected with each other by means of splines extending in the axial direction.
  • the midship yoke (20) and the cardan shaft unit element (30) are carried with the help of a center bearing (40) and are connected to the vehicle chassis with a center bearing connection (41).
  • the center bearing (40) contains fixed coil carrier (42) and a secondary winding surface (421) arranged on the fixed coil carrier (42).
  • a coil winding (S) is arranged on said secondary winding surface (421).
  • the circuit element (D) can be powered on the circuit carrier (10).
  • the circuit element (D) may also be powered by different wireless power transfer arrangements or by battery-like power sources provided on the circuit carrier (10).
  • the circuit carrier (10) contains a circular carrier body (11) and an opening (12) is provided in the center of said carrier body (11) such that it functions as a mouth with reference to Figures 2 and 2.A .
  • the opening (12) is at the end of the walls extending in the axial direction on the carrier body (11).
  • the circuit assembly surface (13) is provided specifically planar for mounting the circuit elements (D).
  • the elevation foot (14) allows the circuit element (D) to be fully encapsulated, as will be explained later.
  • the fluid coating (K) cannot reach the bottom of the circuit element (D) under normal conditions, which creates problems in terms of sealing.
  • the elevation feet (14) creates a gap between two elements by breaking the contact of the circuit element (D) with the circuit assembly surface (13), and the coating (K) fills said cavity, ensuring that the circuit element (D) is completely encapsulated.
  • the expression to fully encapsulate refers to the surfaces of the circuit element (D) outside the part where the elevation feet (14) and the circuit element (D) come into contact.
  • a plurality of elevation feet (14) can preferably be provided and in particular, it can be arranged on the circuit assembly surface (13) with equal angle intervals.
  • the end portion of the elevation feet (14) that contacts the circuit element (14) is preferably provided with a radius as shown in Figure 2.B and accordingly, the amount of surface covered in the circuit element (D) is increased by minimizing the contact area therein.
  • At least one, preferably two, channels (15) are arranged on the circuit assembly surface (13) so as to increase the sealing and to ensure that the coating (K) is connected to the surface more tightly.
  • the channels (15) are preferably arranged in the form of a ring. Passage of fluid through the part related to the filling of the coating (K) into these channels (15) is prevented or significantly reduced compared to the planar surfaces.
  • two channels (15) are arranged and the elevation foot (14) is provided to be positioned between said channels (15). Therefore, the channels (15) ensure sealing especially in the area where the elevating foot (14), that is, the circuit element (D), is located.
  • a recess (16) is provided on said carrier body (11) with reference to Figure 2.A .
  • the recess (16) is preferably provided on the axial walls where the opening (12) is provided.
  • the recess (16) is especially provided in the form of a recess extending in the radial direction towards the rotating part of the cardan shaft.
  • the coating (K) fills the recess (16) in a fluid state and after drying, the recess (16) prevents the coating (K) from moving in the axial direction. Besides, it also increases the sealing similar to the channels (15).
  • retaining holes (17) arranged on the circuit assembly surface (13). Said retaining holes (17) preferably extend in the axial direction on the circuit assembly surface (13). Retaining holes (17) can also be provided in a channel structure opening to the rear section of the circuit assembly surface (13), as in Figure 2.C .
  • the fluid coating (K) fills the retaining holes (17), forming an integrated pin with itself and it prevents the movement of the coating (K) on the circuit assembly surface (13) after freezing
  • Retaining holes (17) are preferably provided in the outer diameter portion of the circuit assembly surface (13). Retaining holes (17) are provided especially between the outer diameter and the channel (15), if any, of the channel (15) closest to the outer diameter.
  • circuit carrier (10) The production of said circuit carrier (10) is as follows.
  • a circuit carrier (10) is provided in accordance with any of the above descriptions or claims.
  • a fluid coating (K) is applied on the circuit assembly surface (13).
  • the fluid coating is filled into the lower part of the circuit element (D), whose contact with the circuit assembly surface (13) is cut off by the elevating feet (14), the holder holes (17) and the channels (15), preferably at least a part or all of the recess.
  • the fluid coating (K) takes its final form by being dried or drying.
  • the opening (12) axis of the circuit holder (10) is positioned perpendicular to the floor during application.
  • the coating (K) is preferably a thermoplastic.
  • thermoplastic polyamide is used.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Credit Cards Or The Like (AREA)
  • Non-Metallic Protective Coatings For Printed Circuits (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
EP21863046.5A 2020-12-24 2021-12-22 A circuit carrier for cardan shafts Active EP4110636B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
TR2020/21618A TR202021618A2 (tr) 2020-12-24 2020-12-24 Kardan mi̇lleri̇ i̇çi̇n bi̇r devre taşiyici
PCT/TR2021/051459 WO2022139765A1 (en) 2020-12-24 2021-12-22 A circuit carrier for cardan shafts

Publications (3)

Publication Number Publication Date
EP4110636A1 EP4110636A1 (en) 2023-01-04
EP4110636B1 true EP4110636B1 (en) 2023-11-01
EP4110636C0 EP4110636C0 (en) 2023-11-01

Family

ID=80448429

Family Applications (1)

Application Number Title Priority Date Filing Date
EP21863046.5A Active EP4110636B1 (en) 2020-12-24 2021-12-22 A circuit carrier for cardan shafts

Country Status (7)

Country Link
US (1) US20230204079A1 (pl)
EP (1) EP4110636B1 (pl)
ES (1) ES2968136T3 (pl)
HU (1) HUE064665T2 (pl)
PL (1) PL4110636T3 (pl)
TR (1) TR202021618A2 (pl)
WO (1) WO2022139765A1 (pl)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020222210A1 (en) * 2019-05-02 2020-11-05 Bondioli & Pavesi S.P.A. System for checking the conditions of use of a cardan shaft for a tool which is connected to a motor and a cardan shaft provided with such a system
EP3714178B1 (en) * 2018-06-20 2021-12-15 Tirsan Kardan Sanayi Ve Ticaret Anonim Sirketi A system for determining revolutions in drive shafts, a cardan shaft related to said system and determining method thereof

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3812391A (en) * 1972-06-16 1974-05-21 Rockwell International Corp Wheel speed sensor
GB1566006A (en) * 1976-12-13 1980-04-30 Eaton Corp In-axle wheel speed sensor
DE3928972A1 (de) * 1989-09-01 1991-03-14 Bayerische Motoren Werke Ag Verfahren und vorrichtung zum spielfreien einstellen des gelenkes einer gelenkwelle in einem kraftfahrzeug

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3714178B1 (en) * 2018-06-20 2021-12-15 Tirsan Kardan Sanayi Ve Ticaret Anonim Sirketi A system for determining revolutions in drive shafts, a cardan shaft related to said system and determining method thereof
WO2020222210A1 (en) * 2019-05-02 2020-11-05 Bondioli & Pavesi S.P.A. System for checking the conditions of use of a cardan shaft for a tool which is connected to a motor and a cardan shaft provided with such a system

Also Published As

Publication number Publication date
US20230204079A1 (en) 2023-06-29
HUE064665T2 (hu) 2024-04-28
WO2022139765A1 (en) 2022-06-30
ES2968136T3 (es) 2024-05-08
EP4110636C0 (en) 2023-11-01
TR202021618A2 (tr) 2022-07-21
EP4110636A1 (en) 2023-01-04
PL4110636T3 (pl) 2024-01-29

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